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Basic Methods in Cellular and Molecular Biology

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 JoVE Bioengineering

Models and Methods to Evaluate Transport of Drug Delivery Systems Across Cellular Barriers

1Fischell Department of Bioengineering, University of Maryland, 2Institute for Bioscience and Biotechnology Research, University of Maryland


JoVE 50638

Many therapeutic applications require safe and efficient transport of drug carriers and their cargoes across cellular barriers in the body. This article describes an adaptation of established methods to evaluate the rate and mechanism of transport of drug nanocarriers (NCs) across cellular barriers, such as the gastrointestinal (GI) epithelium.

 JoVE Clinical and Translational Medicine

Heterotopic Mucosal Engrafting Procedure for Direct Drug Delivery to the Brain in Mice

1Department of Biomedical Engineering, Boston University, 2Department of Otology and Laryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School


JoVE 51452

A mouse model of human endoscopic skull base reconstruction has been developed that creates a semipermeable interface between the brain and nose using nasal mucosal grafts. This method allows researchers to study delivery to the central nervous system of high molecular weight therapeutics which are otherwise excluded by the blood-brain barrier when administered systemically.

 JoVE Neuroscience

Systemic and Local Drug Delivery for Treating Diseases of the Central Nervous System in Rodent Models

1Department of Neurological Surgery, University of California, San Francisco - UCSF


JoVE 1992

Thorough preclinical testing of drugs that act in the central nervous system often involves assessing and comparing drug biodistribution in association with specific routes of administration. Here, three commonly used methods of systemic delivery (intravenous, intraperitoneal, and oral) as well as a method for local delivery (convection-enhanced delivery) are demonstrated in mice.

 JoVE Bioengineering

Contrast Ultrasound Targeted Treatment of Gliomas in Mice via Drug-Bearing Nanoparticle Delivery and Microvascular Ablation

1Department of Biomedical Engineering, University of Virginia, 2Neurological Surgery , University of Virginia


JoVE 2145

Insonation of microbubbles is a promising strategy for tumor ablation at reduced time-averaged acoustic powers, as well as for the targeted delivery of therapeutics. The purpose of the present study is to develop low duty cycle ultrasound pulsing strategies and nanocarriers to maximize non-thermal microvascular ablation and payload delivery to subcutaneous C6 gliomas.

 JoVE Clinical and Translational Medicine

Osmotic Drug Delivery to Ischemic Hindlimbs and Perfusion of Vasculature with Microfil for Micro-Computed Tomography Imaging

1The Texas Heart Institute at St. Luke's Episcopal Hospital, 2Department of Vascular Surgery, The Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University


JoVE 50364

We show here the in vivo insertion of an osmotic pump for constant local drug delivery and the creation of hindlimb ischemia in a mouse model. Moreover, the hindlimb vasculature is perfused with Microfil, a silicone radiopaque agent, to prepare for micro-computed tomography (micro-CT) imaging.

 JoVE Biology

Intraductal Injection for Localized Drug Delivery to the Mouse Mammary Gland

1Vascular Biology Program, Department of Surgery, Boston Children's Hospital and Harvard Medical School, 2Wyss Institute for Biologically Inspired Engineering, Harvard University, 3Harvard School of Engineering and Applied Sciences


JoVE 50692

A protocol for the non-invasive intraductal delivery of aqueous reagents to the mouse mammary gland is described. The method takes advantage of localized injection into the nipples of mammary glands targeting mammary ducts specifically. This technique is adaptable for a variety of compounds including siRNA, chemotherapeutic agents and small molecules.

 JoVE Chemistry

Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?

1Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center


JoVE 50668

An example of a nano drug based on polymalic acid is presented towards the rational design of personalized medicine that is applicable to cancer. It describes the synthesis of a nano drug to treat Her2-positive human breast cancer in a nude mouse.

 JoVE Clinical and Translational Medicine

Setting-up an In Vitro Model of Rat Blood-brain Barrier (BBB): A Focus on BBB Impermeability and Receptor-mediated Transport

1VECT-HORUS SAS, 2Aix-Marseille Université, CNRS, NICN UMR 7259


JoVE 51278

The aim of the present study was to validate the reproducibility of an in vitro BBB model involving a rat syngeneic co-culture of endothelial cells and astrocytes. The endothelial cell monolayer presented high TEER and low LY permeability. Expression of specific TJ proteins, functional responses to inflammation and functionality of transporters and receptors were assessed.

 JoVE Clinical and Translational Medicine

Intranasal Administration of CNS Therapeutics to Awake Mice

1Alzheimer’s Research Center at Region’s Hospital, HealthPartners Institute for Education and Research


JoVE 4440

A method to intranasally administer drugs to awake mice for the purpose of targeting the brain is described. This method allows for repeat dosing over long periods using intranasal administration of drug without anesthesia, and nose-to-brain delivery with minimal systemic exposure.

 JoVE Chemistry

Microwave-assisted Functionalization of Poly(ethylene glycol) and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation

1Department of Biomedical Engineering, University of Rochester, 2Department of Chemical Engineering, University of Rochester, 3Center for Musculoskeletal Research, University of Rochester Medical Center


JoVE 50890

This video will illustrate a rapid, efficient method to methacrylate poly(ethylene glycol), enabling chain polymerizations and hydrogel synthesis. It will demonstrate how to similarly introduce methacrylamide functionalities into peptides, detail common analytical methods to assess functionalization efficiency, provide suggestions for troubleshooting and advanced modifications, and demonstrate typical hydrogel characterization techniques.

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